Answer:
The amount of matter within the system remains the same.
The cycle has a well-defined starting and stopping point.
Explanation:
A closed system can be defined as a system in which there is the only exchange of energy with the surrounding, while no exchange of matter takes place.
In a closed system, the cycle has a well-defined starting and stopping point.
Therefore, the two generalizations which can be made for cycles of matter in a closed system are option 3 and 5)
1
Answer:
Erika solved her problem by activating memories from the past.
Explanation:
Erika is having problems with the Lego structure she is creating. She wants to solve this problem and for that reason, she starts to think about what could help her keep her structure stable, without collapsing.
At that moment, Erika, searched her memory, if she knew something that could help her, that's when she activated a memory from the past that showed that she watched a cartoon that showed something that could work. So, she managed to solve her problem.
B. The work once done by skilled workers was now done by machines and unskilled workers.
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Mass-production techniques and technology called for setting up huge factories with large work force. It created a lot of jobs but due to the division of labor, the skill requirements for a particular job were quite monotonous. Skilled workers were replaced by machines and unskilled machine operators that could perform a single task instead of an array of tasks.
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Explanation:
On March 5, 1770 the dreadful day came. A mob of people went in front of the Customs Office in Boston Massachusetts and started to throw stuff and give insults at the soldiers. As a result to this so-called harassment the soldiers fired on the crowd. The first to die was an African-Amercan man named Crispus Attucks.
Answer:
the answer is B , a new company offers shares of its stock for sale for the first time
Explanation:
i took the test got it right!!!
